SYNOPSES AND DESCRIPTIONS. 29 
broad, rounded at the end. Ventrals 129—133. Anal bifid. Subcaudals 
5U—59 pairs. 
Light greyish-brown, scales punctulate with black, with three alternating 
series of rounded black spots on each side, The median series of spots 
are the largest, four or five scales in width, about fifty from head to vent, 
and twenty-five on the tail. The spots of the upper series are much 
smaller and less distinct than those of the median; and those of the 
lower are still smaller and more faint. Belly yellowish, with a series of 
black spots near each edge. These spots are on the bases of the ventrals, 
a short distance from the extremity. Head to upper edge of labials dark 
brown, with small yellow spots on the occiput; yellow beneath, Tlinois. 
STORERTIA. 
Baird & Girard, 1853. 
Small species. Moderately elongate, rounded; head short, narrow, very 
little larger than the neck, crown flat; tail tapering. Head-shields normal, 
anterior short. Loreal absent or present. Nasal in two parts, nostril be- 
tween, or grooved below the nostril. Teeth equal, smooth. Scales keeled, 
in 15—17 rows. Anal divided or entire. Subcaudals in two rows. Hardly 
to be ranked higher than asa subgenus of Tropidonotus. Canada to Mexico. 
Anal bifid; 
a loreal; orbitals 2—3; 
scales in 15 rows storerioides, 
No loreal; orbitals 2—2; 
scales in 15 rows occipitomaculata. 
orbitals 1—2; 
scales in 17 rows dekayt. 
Anal entire; 
No loreal; scales in 15 rows; orbitals 1—2. 
copel. 
A loreal; scales in 17 rows; 
nasal grooved lineata. 
STORERIA STORERIOIDES. 
TROPIDOCLONIUM STORERIOIDES Cope, 1865, Pr. Ac. N. Se., Phil., 190. 
Small, not slender, muzzle obtuse, in general similar to S. dekayi. Nasal 
divided or grooved. Head-shields nine. Loreal trapezoidal touching the 
decurved prefrontals at the superior angle, sometimes entering the orbit 
